How to Auto Post to X (Twitter): Schedule and Automate Posts (2026)

You can auto post to X (Twitter) by scheduling posts ahead of time or by having new videos from your other accounts posted to X automatically. Here’s how each works, what X allows, and which tools to use.

Option 1: Schedule posts on X (free)

1. On x.com on a computer, write your post.
2. Click the schedule (calendar) icon under the post box.
3. Pick the date and time and confirm.

Scheduled posts are listed under Unsent posts. It’s free but covers X only, one post at a time.

Option 2: Auto post to X with Repostit

• Automatically: every new TikTok, Reel or Short you post is reposted to X as a native video, without the other app’s watermark. See how to post TikToks on X.
• Scheduled: write one post in the Post planner, add X plus Instagram, Facebook, LinkedIn, Threads, Pinterest, TikTok or YouTube, preview each and schedule it.

Plans start at $5 a month with a 14-day free trial, no credit card.

What X allows

• Text: 280 characters on a free account (Premium accounts can post up to 25,000). Check with the caption length checker.
• Video: up to 2 minutes 20 seconds on a free account, 512 MB, in 16:9, 1:1 or 9:16. Check with the video size checker.
• Automation: posting through X’s official API is allowed; avoid tools that ask for your password or post identical content across many accounts.

Tips for automated posts on X

• Write for X. A long Instagram caption gets cut at 280 characters; put the hook first.
• Use native video, not a link to TikTok or YouTube; native videos play in the feed.
• Reply yourself. Automate posting, not conversations.
• Cross-post from X to Facebook? See how to connect X to Facebook.

FAQ

Can I auto post to Twitter for free?

Yes, X’s own scheduler on desktop is free. Tools that also post to other apps usually charge; Repostit has a 14-day free trial.

Can I automatically post my TikToks to X?

Yes. Create a TikTok to X workflow in Repostit and every new TikTok is posted to X as a native video.

Is auto posting allowed on X?

Posting through X’s official API is allowed. Spammy automation, like duplicate posts across many accounts, breaks X’s rules.

More: how to auto post to social media and best cross-posting tools.